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Finding the Fourth Proportional to 6,276.90, 9,404.55 and 2,982.90

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Solution

The fourth proportional to 6,276.90, 9,404.55 and 2,982.90 is: 4,469.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,276.90 : 9,404.55 = 2,982.90 : x
  2. Step 2: Convert to fraction form
    6,276.90/9,404.55 = 2,982.90/x
  3. Step 3: Cross multiply
    6,276.90x = 9,404.55 × 2,982.90
  4. Step 4: Simplify right side
    6,276.90x = 28,052,832.20
  5. Step 5: Solve for x
    x = 28,052,832.20/6,276.90
  6. Step 6: Final answer
    x = 4,469.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.